Stop unfruitful effort.

停止无谓的努力。

For if I pray in a tongue, my spirit prays, but my mind is unfruitful.

我若用方言祷告、是我的灵祷告．但我的悟性没有果效。

Here's a day trip that looked unfruitful, but turned out alright in the end.

这里的行程，仿佛徒劳的，但原来在哪里结束。

Cor. 14:14 For if I pray in a tongue, my spirit prays, but my mind is unfruitful.

林前十四14因为我若用方言祷告，我的灵就祷告，我的心思却没有作用。

And have no fellowship with the unfruitful works of darkness, but rather reprove them.

不要参与黑暗无益的作为，反要加以指摘。